Refactoring: Moved code for cram-designators into sub-directory.
Removed: Export of no longer available symbol 'with-designators' from cram-designators.
Added new lisp-package 'cram-language-designator-support' to cram-designators to hold designator-dependent extensions of CRAM language.
Moved-in macro 'with-designators' from cram-plan-library.